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Finding the Fourth Proportional to 135.29, 186.58 and 114.55

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Solution

The fourth proportional to 135.29, 186.58 and 114.55 is: 157.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    135.29 : 186.58 = 114.55 : x
  2. Step 2: Convert to fraction form
    135.29/186.58 = 114.55/x
  3. Step 3: Cross multiply
    135.29x = 186.58 × 114.55
  4. Step 4: Simplify right side
    135.29x = 21,372.56
  5. Step 5: Solve for x
    x = 21,372.56/135.29
  6. Step 6: Final answer
    x = 157.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.